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Ships within 48 hours · Estimated delivery Aug 7 - Aug 12
7-inch color LCD display
Interface of External: USB2
Power Supply: One AA-size battery(not included in the package)
Auto-Power-Off Function
*Working time：about 100 hours（with default brightness）
AZ8930 Sound Level Meter Calibrator Professional Noise Tester Calibrator AZ8930B Voltage Regulators 7-inch color LCD displayAZ8930 Sound Level Meter Calibrator Professional Noise Tester Calibrator AZ8930B Professional 8930 AZ Sound Level Meter Calibrator features: * Meets IEC 60942: 2018, type 2 class standard * Stay accurate even in extreme room humidity condition and high altitude places * Suitable for all sound level meter with microphone head mechanical compliant with IEC 61094 1 or IEC 61094 4, such as 23. 8 13. 2 12. 2 and 7mm * Calibration frequency at 1K Hz with
